ImagickPixelIterator::getNextIteratorRow
(PECL imagick 2, PECL imagick 3)
ImagickPixelIterator::getNextIteratorRow — Returns the next row of the pixel iterator
Descrição
Aviso
Esta função não está documentada; apenas a lista de argumentos está disponível.
Returns the next row as an array of pixel wands from the pixel iterator.
Valor Retornado
Returns the next row as an array of ImagickPixel objects, throwing ImagickPixelIteratorException on error.
Exemplos
Exemplo #1 ImagickPixelIterator::getNextIteratorRow()
<?php
function getNextIteratorRow($imagePath) {
$imagick = new \Imagick(realpath($imagePath));
$imageIterator = $imagick->getPixelIterator();
$count = 0;
while ($pixels = $imageIterator->getNextIteratorRow()) {
if (($count % 3) == 0) {
/* Loop through the pixels in the row (columns) */
foreach ($pixels as $column => $pixel) {
/** @var $pixel \ImagickPixel */
if ($column % 2) {
/* Paint every second pixel black*/
$pixel->setColor("rgba(0, 0, 0, 0)");
}
}
/* Sync the iterator, this is important to do on each iteration */
$imageIterator->syncIterator();
}
$count += 1;
}
header("Content-Type: image/jpg");
echo $imagick;
}
?>
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